Improvement in bench-hooks



, anni crimine.

'HENRY J. SKINNER, or DUNKIRK, New YoRK.

Letters Patent No. 104,069, dated June 7, 1870.

The Schedule referred to in these LettereA Patentv and making'part ofthe same.

To all whom it may concern V Be it known that I, HENRY J. SKINNun, ot'Dunkirk, in the county of .Chautauqua and State of New York, hareinvented certain new and useful Improvements in Beuch-Qtops; and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to 'the accompanying drawingsand to the letters of reference marked thereon, which forni part of thisspecification, in whichv Figure l represents avertical section ot myinvention. A

Figure 2 is a perspective/view ot' the shank of the stop. V

'Ihe nature of my invention-consists in the construction and arrangementot' astop feria carpentes bench, as hereinafter described.

A represents a metal tube, having, at its upper end, the ange B, thesaid iiauge being secured to the bottom ot' bench C by means of screws.

Into the tube A a spiral spring, d, is inserted, the lower end of thespring being made to rest on a shoul der near the lower end ot' tube A.

E is thestop, with the shank g attached to it, the said shankterminating in the screw-bolt h, whichextends a suitable distance belowthe bench C.

'Ihe shank gis furnished with shoulders s s, against which thc upper endof spring d will rest when in position. T

His acircnlar nut working on screw-bolt h,"desigued to act on the lowerend of tube 'A for the purpose of compressing the spring d.

It will be observed that the upper surface of the stop E is at a rightangle with the shank g, while the under surface slight-ly descends fromthe edge of the stop to the shank g, forming an obtuse angle, the objectof which is to prevent the dust from collecting under the sel-rations atthe edge of stopE, and thereby' prevent the stop `from descending intothe excavation made to receive it.

To preyeut the wear 0f the opening through which the shank g isinserted, a metal plate, I, is bolted to the edge of said opening, itsupper surface being ilush with the top of the bench.

In order to adjust the stop E, the operator willvturu,

the nut H, and thereby raise the stop or lower it, to suit his purpose.

Having thus fully described my invent-ion,

That I claim, and desire to secure by Letters Patent, isw Ihe stop E,constructed as described, in combina- 'tion with spring G, tube A, andadjlisting-wheel H,

all.A arranged'as described, and for the purpose set forth.

In testimony that I claim t-he foregoing as my own I atx my signature inpresence ot two witnesses` HENRY J. SKINNER. `'Vitnesses z 4WM.Booksuvnn,

F. S. EDWARDS.

